/**
 * Copyright 2019 The JoyQueue Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.joyqueue.client.internal.consumer.interceptor;

import org.joyqueue.client.internal.Plugins;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.stream.StreamSupport;

/**
 * GlobalConsumerInterceptorManager
 *
 * author: gaohaoxiang
 * date: 2019/1/11
 */
public class GlobalConsumerInterceptorManager {

    private static final List<ConsumerInterceptor> interceptors;

    static {
        interceptors = loadInterceptors();
    }

    public static List<ConsumerInterceptor> getInterceptors() {
        return interceptors;
    }


    protected static List<ConsumerInterceptor> loadInterceptors() {
        Iterable<ConsumerInterceptor> iterable = Plugins.CONSUMER_INTERCEPTOR.extensions();
        if (iterable != null) {
            return Arrays.asList(StreamSupport.stream(iterable.spliterator(), false).toArray(ConsumerInterceptor[]::new));
        }
        return Collections.emptyList();
    }
}